Table 3.

The REEs and Y concentration in investigated topsoil samples compared with similar environments.

Element mean (μg/g)	Study area	Topsoil, Europe [54]	Topsoil, Sweden [11]	Soil [74]	UCC [8]
La	66.11	27.7	25.19	26.10	31
Ce	87.98	52.2	37.67	48.70	63
Pr	12.86	6.50	5.94	7.60	7.1
Nd	39.01	22.4	15.14	19.50	27
Sm	7.77	4.28	2.98	4.80	4.7
Eu	1.78	0.85	0.65	1.23	1.0
Gd	6.11	4.20	3.09	6.03	4.0
Tb	0.98	0.64	0.47	0.71	0.7
Dy	5.74	3.79	3.79	3.65	3.9
Ho	0.96	0.72	0.61	1.08	0.83
Er	2.77	2.10	1.88	1.58	2.3
Tm	0.46	0.31	0.28	0.46	0.3
Yb	2.86	2.09	2.01	2.06	2.0
Lu	0.35	0.31	0.30	0.34	0.32
Y	21.67	21	25	23a	21

UCC - upper continental crust.

^aMean Y contents for uncultivated soil.